Convert FOR to CBL

Both of FOR and CBL files can be edited in any text editor, however there is no way how they actually could be converted between each other, to be working as their respective file type. Both files are sources (texts) for different purposes. In case of two different programming languages, you would have to manually rewrite the code in new syntax and no easy way how to achieve for to cbl conversion is most likely possible.

In case you need some particular help with .for and .cbl files it would be perhaps best to consult some community forums related to Fortram or Cobol programming language.

Simply put, it is impossible to convert FOR to CBL directly.
Thus, there is no so-called for to cbl converter or a free online .for to .cbl converter to be found.